MP4 to MP3 converter
Save the sound of an MP4 video as an MP3, without uploading the video.
or drop them here, or paste them
Nothing is uploaded.
About MP4 to MP3
Want the audio of a talk, a song from a concert clip or a voice message recorded as video? This converter takes the sound track out of your MP4 and saves it as an MP3 that plays on every phone, car and music app.
The video is decoded by your browser's own media engine and the MP3 is made on your device, so even long or private recordings never leave it. Choose 192 kbps for most uses, or 320 kbps for music you care about.
The picture is left out, so the MP3 is far smaller than the video: an hour of sound at 192 kbps takes about 85 MB, whatever the video's resolution. The MP3 is as long as the video, from the first second to the last.
Conversion runs at many times real speed on a recent phone or computer, so even a long lecture is done in a minute or two. Most current browsers can do it; if yours lacks the media features it needs, the page says so before you start. If the video has no sound track, you get a clear message instead of a silent file.
Questions and answers
192 kbps sounds good for almost everything and keeps files small. Pick 320 kbps for music, or 128 kbps for speech such as lectures and podcasts.
We tell you the file has no audio track, so there is nothing to save as MP3.
Yes. Longer videos simply take longer; your device does the work. On a phone, keep the page open until it finishes.
No. The sound is read out of the video and encoded as MP3 inside your browser. That is also why a large video starts converting at once: there is no upload to wait for.